        var num=0;
		var timer;
		function play(){
		timer=setInterval(function(){
			num++;
			if(num==3)num=0;
            $('.banner .banner_ul>li').eq(num).fadeIn(800).siblings().fadeOut(800);
            // $('.banner .title>ul>li').eq(num).fadeIn(800).siblings().fadeOut(800);
            $('.banner .title>ul>li').hide();
            $('.banner .title>ul>li').eq(num).fadeIn().siblings().fadeOut();
		},2000)
	}

        play();
                $('.banner .right_span,.left_span').mouseenter(function(){
				clearInterval(timer)
            })
                $('.banner .left_span').mouseenter(function(){
				$('.left_span').css('background','rgba(160,32,240,0.25)');
            })
                $('.banner .right_span').mouseenter(function(){
				$('.right_span').css('background','rgba(160,32,240,.25)');
            })
                $('.banner .right_span,.left_span').mouseleave(function(){
                play();
                $('.banner .right_span,.left_span').css('background','rgba(255,255,255,0.25)');
            })
		//右按钮			
				$('.banner .right_span').click(function(){
				num++;
				if(num==3)num=0;
                $('.banner .banner_ul li').eq(num).fadeIn(500).siblings().fadeOut(500);
                $('.banner .title>ul>li').hide();
                $('.banner .title>ul>li').eq(num).fadeIn().siblings().fadeOut();
				})
	    //左按钮
				$('.banner .left_span').click(function(){
				num--;
				if(num==-1)num=1;
                $('.banner .banner_ul li').eq(num).fadeIn(500).siblings().fadeOut(500);
                $('.banner .title>ul>li').hide();
                $('.banner .title>ul>li').eq(num).fadeIn().siblings().fadeOut();
				})

			$('.banner').mouseenter(function(){
				// clearInterval(timer);
				$('.left_span,.right_span').show();
			})		

			$('.banner').mouseleave(function(){
				// play();
				$('.left_span,.right_span').hide();
			})
    